Planets of Our Solar System

How many planets are in our solar system?

• seven planets

• five planets

• eight planets

• nine planets

What is the smallest planet in our solar system?

• Venus

• Mercury

• Earth

• Mars

How many days does it take Mercury to orbit the sun?

• 78 days

• 68 days

• 88 days

• 98 days

Mars is the hottest and brightest planet.

• True

• False

How many Inner Planets are there?

• five

• eight

• seven

• four

Which planet is closest to the sun?

• mercury

• earth

• mars

• venus

Which planet is sometimes called "Earth's Twin"?

• mercury

• venus

• mars

• saturn

The sun is a planet.

• True

• False

Select all the Inner planets

• earth

• saturn

• mars

• mercury

• venus